package com.itheima.tliasmanagement.mapper;

import com.itheima.tliasmanagement.entity.Dept;
import com.itheima.tliasmanagement.vo.DeptVo;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface DeptMapper {
//    2. 手动映射
//    @Results({
//            @Result(column = "create_time", property = "createTime"),
//            @Result(column = "update_time", property = "updateTime"),
//    })
    @Select("select id, name, create_time, update_time from dept")
    //1. 别名 @Select("select id, name, create_time as createTime, update_time as updateTime from dept")
    public List<DeptVo> selectAll();

    @Delete("delete from dept where id = #{id}")
    void deleteById(@Param("id") Integer id);

    // ognl表达式
    void insert(Dept dept);

    @Select("select * from dept where id = #{id}")
    Dept selectById(Integer id);

    //@Update("update dept set name=#{name},update_time=#{updateTime} where id = #{id}")
    void update(Dept dept);
}
